feat: restructure and move apps into their own configs (#2)

home/programs/fish.nix

@@ -0,0 +1,40 @@
+{
+  pkgs,
+  lib,
+  device,
+  ...
+}: {
+  programs.fish = {
+    enable = true;
+    shellAbbrs = {
+      vim = "nvim";
+      vi = "nvim";
+      nv = "neovide";
+      g = "git";
+      yy = "yazi";
+      cd = "z";
+      ls = "eza";
+      cat = "bat";
+      j = "just --choose";
+      # t = "zellij a -c --index 0";
+      t = "tmux";
+    };
+    shellAliases =
+      {
+        g = "git";
+      }
+      // lib.optionalAttrs pkgs.stdenv.isLinux {
+        kmpv = "mpv --vo-kitty-use-shm=yes --vo=kitty --really-quiet";
+        smpv = "mpv --vo-sixel-buffered=yes --vo=sixel --profile=sw-fast";
+      };
+    shellInit = ''
+      set fish_greeting
+      yes | fish_config theme save "Catppuccin Mocha"
+    '';
+    # ${pkgs.spotify-player}/bin/spotify_player generate fish | source
+    interactiveShellInit = ''
+      ${pkgs.pfetch-rs}/bin/pfetch
+      ${lib.optionalString (device.isLinux && !device.isNix) "source /etc/profile.d/nix-daemon.fish"}
+    '';
+  };
+}